<template>
  <div>
    <div class="search">
      <input v-model="keyword" class="search-input" type="text" name="" id="" placeholder="输入城市名或拼音">
    </div>
    <div 
      class="search-content" 
      ref="search"
      v-show="keyword"
      >
      <ul>
        <li 
          class="search-item border-bottom"   
          v-for="item of list" 
          :key="item.id"
          @click=" handleCityClick(item.name)"
          >{{item.name}}</li>
        <li class="search-item border-bottom"  v-show="hasNoData" >没有找到匹配数据</li>
      </ul>
    </div>
  </div>
</template>
 
<script>
import Bscroll from 'better-scroll'
import { mapMutations } from 'vuex'
export default {
  name: "CitySearch",
  props:{
    cities:Object
  },
  data () {
    return {
      keyword:'',
      list:[],
      timer:null
    };
  },
  computed: {
    hasNoData(){
      return !this.list.length
    }
  },
  watch: {
     keyword(){
       if(this.timer){
         clearTimeout(this.timer)
       }
       if(!this.keyword){
         this.list = []
         return
       }
       this.timer = setTimeout(() => {
         const result = []
         for(let i in this.cities){
           this.cities[i].forEach((value) => {
             if(value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1 ) {
               result.push(value)
             }
           })
         }
         this.list = result
       }, 100);
     }
  },
  methods: {
      handleCityClick(city){
        //   this.$store.dispatch('changeCity',city)
        //   this.$store.commit('changeCity',city)
          this.changeCity(city)
          this.$router.push('/')
         
      },
      ...mapMutations(['changeCity'])
  },
  mounted() {
    this.scroll = new Bscroll(this.$refs.search)
  },

};
</script>

<style lang="stylus" scoped>
@import '~styles/varibles.styl'
    .search
        height :.72rem
        padding :0 .1rem
        background :$bgColor
        .search-input
            box-sizing :border-box
            width : 100%
            height :.62rem
            padding :0 .1rem
            line-height :.62rem
            text-align :center
            border-radius : .06rem
            color :#666
    .search-content
        z-index :1
        overflow :hidden
        position :absolute
        top :1.58rem
        left :0
        right :0
        bottom :0
        background :#eee
        .search-item
          line-height :.62rem
          padding-left :.2rem
          background :#fff
          color : #666




</style>
